THIS IS FOR 1 NEW GENUINE DETROIT DIESEL ENGINE MUFFLER – CATALYTIC CONVERTER. PART NUMBER # 23530944. IN THE ORIGINAL BOX. I WAS TOLD BY THE MFG THAT THESE FIT A SERIES 50. I OBTAINED THESE FROM A US SUPPLIER FOR THE MILITARY THAT WENT OUT OF BUSINESS. THE BOXES ARE NOT PERFECT. IT APPEARS […]